Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c624ab60fbd9480…

MALICIOUS

PDF

185.5 KB Created: 2015-07-24 06:39:03 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: bc9a34d714aad12922cf2410b8f77825 SHA-1: 4abbceb7e3598a670035e401c7febe4ce4516603 SHA-256: 5c624ab60fbd9480ff6b88dfb7e1df4b56c7cab9e1b09558a8c8985c2b49ce3d
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the embedded URL is the primary indicator of malicious intent, likely serving as a lure for a phishing or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 2

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://botcraftman.ru/?lip&keyword=%D0%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+blocklauncher+pro+%D0%BD%D0%B0+081+%D0%BD%D0%B0+%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B8%D0%B4&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186929_skachat_igru_plants_vs_zombies_2_na_kompyuter_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186204_mirrors_edge_2_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187487_fotoshop_skachat_besplatno_bez_sms_bez_registracii.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023f59.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23F59 3556 bytes
font_01_sfnt_off00024cdc.bin
d5478024a1c2207b6ce8015d1852a2a741c90f530afb528036f32471a9189b6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24CDC 14908 bytes
font_02_sfnt_off00027af7.bin
317c3401fc30baf744224bd89444e92d0b4d9b47255e8378a74bbce8ef569a23		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27AF7 14700 bytes
font_03_sfnt_off0002a621.bin
600f37e803fcc69f826e25e5e7da6bed309739934d3c4f70448a0e2b0e4e07c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A621 7484 bytes
font_04_sfnt_off0002bc2c.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC2C 6084 bytes
font_05_sfnt_off0002cbc1.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CBC1 3752 bytes

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